Sorry Yello. I could've made it more obvious! It was only fifteen minutes long, but QI; Millar's apparently just written a book and is doing the rounds plugging it. I'm sure there'll be a podcast of it up on BBC London's website in the near future if you're dieing to hear it. Or you might catch him on another station in the near future being asked the same questions about drugs 'n' doping.
Thankfully Robert Elms didn't waste too much breath telling us all how much he loves wearing Lycra.